Versions tested: 0.21
Optimal parameters: default
Authors: Julian Seward
Algorithms: RLE+BWT+MTF+ARI
Notable peformances: -


Bzip compresses files using the Burrows-Wheeler-Fenwick block-sorting text compression algorithm.


The ideas embodied in bzip are due to (at least) the following people: Michael Burrows and David Wheeler (for the block sorting transformation), Peter Fenwick (for the structured coding model, and many refinements), and Alistair Moffat, Radford Neal and Ian Witten (for the arithmetic coder).

the program documentation


The compressor is featured in the BWT comparison.

(Have info that should be added here? E-mail.)

Qualified configurations
Ver Rating CPR DPR S.E. R.E. Ratio C. kB/s D. kB/s
0.21 7 9 1 33 0 2.957 2909 6507

Version info

0.21, tar: yes, mode: 64-bit, crc32: 8ed2aceb, decoder: 26 kB, tested: 2010 Apr 15
compression: bzip.exe -fk <args> <src>
decompression: bzip.exe -dk <cfile>